2100142220 has 48 divisors (see below), whose sum is σ = 4848028416. Its totient is φ = 757848000.

The previous prime is 2100142217. The next prime is 2100142309. The reversal of 2100142220 is 222410012.

It is a junction number, because it is equal to n+sod(n) for n = 2100142195 and 2100142204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7616 + ... + 65255.

It is an arithmetic number, because the mean of its divisors is an integer number (101000592).

Almost surely, 2^2100142220 is an apocalyptic number.

2100142220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100142220 is an abundant number, since it is smaller than the sum of its proper divisors (2747886196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2100142220 is a wasteful number, since it uses less digits than its factorization.

2100142220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73022 (or 73020 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2100142220 is about 45827.3086707042. The cubic root of 2100142220 is about 1280.6080729014.

Adding to 2100142220 its reverse (222410012), we get a palindrome (2322552232).

The spelling of 2100142220 in words is "two billion, one hundred million, one hundred forty-two thousand, two hundred twenty".